124 lines
7.3 KiB
HTML
124 lines
7.3 KiB
HTML
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<title>SQLRowCount</title>
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<body id="rzadpfnrowc"><a name="rzadpfnrowc"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">SQLRowCount - Get row count</h1>
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<div><div class="section"></div>
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<div class="section"><h4 class="sectiontitle">Purpose</h4> <p><samp class="codeph">SQLRowCount()</samp> returns
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the number of rows in a table affected by an UPDATE, INSERT, or DELETE statement
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processed against the table, or a view based on the table.</p>
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<p><samp class="codeph">SQLExecute()</samp> or <samp class="codeph">SQLExecDirect()</samp> must
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be called before calling this function.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Syntax</h4><pre>SQLRETURN SQLRowCount (SQLHSTMT hstmt,
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SQLINTEGER *pcrow);</pre>
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</div>
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<div class="section"><h4 class="sectiontitle">Function arguments</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="hsides" border="1" rules="all"><caption>Table 1. SQLRowCount arguments</caption><thead align="left"><tr><th align="left" valign="top" width="26.355140186915886%" id="d0e55">Data type</th>
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<th align="left" valign="top" width="18.50467289719626%" id="d0e57">Argument</th>
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<th align="left" valign="top" width="18.317757009345794%" id="d0e59">Use</th>
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<th align="left" valign="top" width="36.822429906542055%" id="d0e61">Description</th>
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</tr>
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</thead>
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<tbody><tr><td align="left" valign="top" width="26.355140186915886%" headers="d0e55 ">SQLHSTMT</td>
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<td align="left" valign="top" width="18.50467289719626%" headers="d0e57 "><em>hstmt</em></td>
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<td align="left" valign="top" width="18.317757009345794%" headers="d0e59 ">Input</td>
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<td align="left" valign="top" width="36.822429906542055%" headers="d0e61 ">Statement handle.</td>
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</tr>
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<tr><td align="left" valign="top" width="26.355140186915886%" headers="d0e55 ">SQLINTEGER *</td>
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<td align="left" valign="top" width="18.50467289719626%" headers="d0e57 "><em>pcrow</em></td>
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<td align="left" valign="top" width="18.317757009345794%" headers="d0e59 ">Output</td>
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<td align="left" valign="top" width="36.822429906542055%" headers="d0e61 ">Pointer to location where the number of rows
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affected is stored.</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div class="section"><h4 class="sectiontitle">Usage</h4><p>If the last processed statement referenced
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by the input statement handle is not an UPDATE, INSERT, or DELETE statement,
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or if it is not processed successfully, then the function sets the contents
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of <em>pcrow</em> to 0.</p>
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<p>Any rows in other tables that might have been
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affected by the statement (for example, cascading deletes) are not included
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in the count.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Return codes</h4><ul><li>SQL_SUCCESS</li>
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<li>SQL_ERROR</li>
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<li>SQL_INVALID_HANDLE</li>
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</ul>
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</div>
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<div class="section"><h4 class="sectiontitle">Diagnostics</h4>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="hsides" border="1" rules="rows"><caption>Table 2. SQLRowCount SQLSTATEs</caption><thead align="left"><tr><th align="left" valign="top" width="25%" id="d0e119">SQLSTATE</th>
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<th align="left" valign="top" width="25%" id="d0e121">Description</th>
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<th align="left" valign="top" width="50%" id="d0e123">Explanation</th>
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</tr>
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</thead>
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<tbody><tr><td align="left" valign="top" width="25%" headers="d0e119 "><strong>40</strong>003 <strong>*</strong></td>
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<td align="left" valign="top" width="25%" headers="d0e121 ">Statement completion unknown</td>
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<td align="left" valign="top" width="50%" headers="d0e123 ">The communication link between the CLI and
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the data source fails before the function completes processing.</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e119 "><strong>58</strong>004</td>
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<td align="left" valign="top" width="25%" headers="d0e121 ">System error</td>
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<td align="left" valign="top" width="50%" headers="d0e123 ">Unrecoverable system error.</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e119 "><strong>HY</strong>001</td>
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<td align="left" valign="top" width="25%" headers="d0e121 ">Memory allocation failure</td>
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<td align="left" valign="top" width="50%" headers="d0e123 ">The driver is unable to allocate memory required
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to support the processing or completion of the function.</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e119 "><strong>HY</strong>009</td>
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<td align="left" valign="top" width="25%" headers="d0e121 ">Argument value that is not valid</td>
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<td align="left" valign="top" width="50%" headers="d0e123 "><em>pcrow</em> is a null pointer.</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e119 "><strong>HY</strong>010</td>
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<td align="left" valign="top" width="25%" headers="d0e121 ">Function sequence error</td>
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<td align="left" valign="top" width="50%" headers="d0e123 ">The function is called before calling SQLExecute
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or SQLExecDirect for the <em>hstmt</em>.</td>
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</tr>
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<tr><td align="left" valign="top" width="25%" headers="d0e119 "><strong>HY</strong>013 <strong>*</strong></td>
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<td align="left" valign="top" width="25%" headers="d0e121 ">Memory management problem</td>
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<td align="left" valign="top" width="50%" headers="d0e123 ">The driver is unable to access memory required
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to support the processing or completion of the function.</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div class="section"><h4 class="sectiontitle">References</h4><ul><li><a href="rzadpfnexecd.htm#rzadpfnexecd">SQLExecDirect - Execute a statement directly</a></li>
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<li><a href="rzadpfnexec.htm#rzadpfnexec">SQLExecute - Execute a statement</a></li>
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<li><a href="rzadpfnnrcol.htm#rzadpfnnrcol">SQLNumResultCols - Get number of result columns</a></li>
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</ul>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzadphdapi.htm" title="This topic provides a description of each CLI function.">DB2 UDB CLI functions</a></div>
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</div>
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</div>
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